Taxonomic importance of leaf anatomical characters for the genus Alopecurus L. (Poaceae)

Tiller leaf anatomical features of nine Alopecurus species collected from high mountainous areas in Turkey were evaluated in the present study. Detailed leaf anatomical descriptions of the studied taxa and an identification key generated using the anatomical features are given. Clustering and principal coordinate analysis (PCA) methods were applied based on a total of 14 leaf anatomical characters. Anatomical differences between species were detected and anatomical characters of taxonomic interest were identified in this genus. With clustering analyses, a UPGMA tree was obtained to show the relationship between the species studied. Based on the results of PCA, the arrangement of adaxial sclerenchyma cells, the number of adaxial ribs, the number of abaxial sclerenchyma strands, the size of epidermal cells and the number of vascular bundles are designated as the most reliable characters to separate the species

Resurrection of Ornithogalum brevipedicellatum (Asparagaceae) with morphological and molecular data

This study evaluates Ornithogalum brevipedicellatum, which was previously accepted as a synonym of O. oligophyllum, as a separate distinct species and discusses the similarities and differences between O. brevipedicellatum and its related species (O. oligophyllum and O. pamphylicum). Similarities and differences among these species were identified by morphological and molecular studies. The leaf morphology and inflorescence of O. brevipedicellatum and O. pamphylicum are similar to each other, and in terms of these features, they show differences from O. oligophyllum. Some diagnostic characteristics are quite different in O. brevipedicellatum and O. pamphylicum, such as the size of tepals, length of fruiting pedicels and style. Morphological data were supported by the results obtained from molecular studies. According to a dendrogram obtained by molecular studies, O. brevipedicellatum and O. pamphylicum are similar. O. oligophyllum is more closely related to O. pyrenaicum used as an out-group. Additionally, the seeds of O. brevipedicellatum were examined with the use of scanning electron microscopy

Glaucium alakirensis (Papaveraceae), a new species from Southern Anatolia, Turkey

Glaucium alakirensis, a small cushion forming perennial from South Anatolia, is described and compared with related species (G. leiocarpum, G. secmenii). The chorology and ecology of the new species and its relatives are discussed. The IUCN threat category Critically Endangered is suggeste

Festuca albomontana (Poaceae), a new chasmophytic fescue from the Western Taurus Mountains (Antalya, Turkey)

A new species of Festuca from the Western Taurus Mountains (Antalya, Turkey) is described here and named F. albomontana. The new species can clearly be distinguished from the other species included in the F. alpina group by its leaf anatomical features. It has a geographically isolated position in the Western Tauruses whereas a closely related species, F. sommieri, is very local in the Black Sea Region of Turkey. It is suggested that it should be in the “critically endangered” threat category according to the International Union for Conservation of Nature (IUCN) criteria. Observations on the ecology of the population are noted

Omphalodes nedimeae (Boraginaceae), a new species from the Mediterranean Region of Turkey

Aykurt, Candan, Sümbül, Hüseyin, Gülben, Mertcan, Sari, Duygu, Konuralp, Leman Yasemin (2021): Omphalodes nedimeae (Boraginaceae), a new species from the Mediterranean Region of Turkey. Phytotaxa 498 (4): 242-254, DOI: 10.11646/phytotaxa.498.4.2, URL: http://dx.doi.org/10.11646/phytotaxa.498.4.

Taxonomic data supporting differences between Allium elmaliense and Allium cyrilli

The first specimens of Allium elmaliense were collected in Elmal? (Antalya/Turkey) in 2001 and were described as new species in 2004. However, Allium elmaliense was claimed as synonym of Allium cyrilli in 2006. This study was undertaken to reveal the differences between these taxa utilizing morphological, palynological, and chromosome characters and genomic differences based on the DNA analyses along with the ecological preference studies conducted during 2006 and 2011. The results clearly indicated differences between these two taxa in terms of morphological characters, pollen, seed surfaces and niche preferences. Chromosome morphology and Td-DAMD-PCR fingerprinting studies revealed that Allium elmaliense Deniz & Sumbul is a distinct species and not a synonym of A. cyrilli Ten